There is four terestrial planets in the solar system, and even the universe. There is more than one characteristic about each of them. they all have a rocky outside look to them all. they are the closest one to the sun and are the hottest ones near the sun. they are all part of the solar system in a way.
Mercury
There is four terestrial planets in the solar system, and even the universe. There is more than one characteristic about each of them. they all have a rocky outside look to them all. they are the closest one to the sun and are the hottest ones near the sun. they are all part of the solar system in a way.